12402797 has 4 divisors (see below), whose sum is σ = 13530336. Its totient is φ = 11275260.

The previous prime is 12402781. The next prime is 12402799. The reversal of 12402797 is 79720421.

12402797 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12402797 - 2⁴ = 12402781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563753 + ... + 563774.

It is an arithmetic number, because the mean of its divisors is an integer number (3382584).

Almost surely, 2^12402797 is an apocalyptic number.

It is an amenable number.

12402797 is a deficient number, since it is larger than the sum of its proper divisors (1127539).

12402797 is a wasteful number, since it uses less digits than its factorization.

12402797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127538.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 12402797 is about 3521.7604972513. The cubic root of 12402797 is about 231.4763071163.

The spelling of 12402797 in words is "twelve million, four hundred two thousand, seven hundred ninety-seven".